One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,7)(3,5,8,4)(9,10,14,16)(11,12,15,13)(18,21)(19,23)(25,26,29,31)(27,32,30,28)(1,3)(2,4)(5,7)(6,8)(9,11,14,15)(10,12,16,13)(17,18)(19,22)(20,21)(23,24)(25,27)(26,28)(29,30)(31,32)(1,4,6,5)(2,3,7,8)(9,12,14,13)(10,11,16,15)(17,18)(19,22)(20,21)(23,24)(25,26)(27,32)(28,30)(29,31)(1,5,6,4)(2,3,7,8)(9,13,14,12)(10,15,16,11)(17,19,20,23)(18,22,21,24)(25,28,29,32)(26,30,31,27)(1,3)(2,5)(4,7)(6,8)(9,10)(11,12)(13,15)(14,16)(17,18)(19,24)(20,21)(22,23)(25,26)(27,28)(29,31)(30,32) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.